Chronically embarrassed by her family's over-the-top Christmas celebrations, a teenage girl hatches an elaborate plan to avoid her parents when her long-distance boyfriend plans a visit.

A dirty bomb goes off in Los Angeles, jamming freeways and spreading a toxic cloud.

When a family is held hostage, former hostage negotiator Jeff Talley arrives at the scene. Talley's own family is kidnapped and Talley must decide which is more important: saving a family he doesn't even know or saving his own fam...

When a colossal tectonic shift causes the sea level to start rising, a microbiologist gathers the DNA of as many species as she can, while the military creates an "ark" in a desperate attempt to preserve life on Earth.

When zombies overrun San Francisco, a desperate group survives by locking themselves inside Alcatraz Prison. When the undead breach the island, our heroes are forced to return to the mainland overrun with the undead.